A simple timer is under complicated - if you cook two slices in immediate successionm, the second slice will be burned as the coils will still be hot. As I unde

A simple timer is under complicated - if you cook two slices in immediate successionm, the second slice will be burned as the coils will still be hot. As I understand it, a good quality toaster will have at minimum both a thermal switch (like a bimetallic switch) and a timer, which only starts when the toaster is hot. I don't see how a simple thermostat with no timer can do the job by itself.